A naval ship is a military ship used by a navy. Naval ships are differentiated from civilian ships by construction and purpose. Generally, naval ships are damage resilient and armed with weapon systems, though armament on troop transports is light or non-existent.
A United States Navy Atlantic Fleet task force underway in 1959. The ships include an aircraft carrier, two submarines, and seven destroyers.
United States Navy and Philippine Navy vessels in the Sulu Sea in 2005
The USS Enterprise (CVN-65), the longest naval vessel ever built, near Portsmouth, England in 2004
The USNS Patuxent (T-AO-201) replenishment oiler resupplying HMS Dauntless (D33) in 2012
A navy, naval force, military maritime fleet, war navy, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields.
The Spanish Armada fighting the English navy at the Battle of Gravelines in 1588
British and Danish navies in the line of battle at the Battle of Copenhagen (1801)
A flotilla from the Indian Navy's Western Fleet escorts the aircraft carriers INS Viraat and INS Vikramaditya through the Arabian Sea in 2014
Fourth Style wall painting with naumachia (triremes), a detail from a panel from the portico of the Temple of Isis in Pompeii, Naples National Archaeological Museum
